Why make such a request when we have several decent manufacturers already in place, including Objet/Stratasys, 3D Systems, EOS, Arcam, Envisiontec and many others? Peels has a strong argument: many of the companies mentioned above hold valid patents on various 3D printing processes, yet they aren't visibly using them. This, at a time when 3D printing is about to take off - just the moment when true entrepreneurs should be piecing together products.